CNC Machining Part Material: brass, copper, bronze, alloy steel, stainless steel, carbon steel, aluminum etc CNC Machining Part1. Material: brass, copper, bronze, ... . ISO9001 2000 quality control5. Strong engineering team makes high quality; own test equipments and 100% inspection prior ... shipment6. Packing methods: Ply wood case/Steel pallet with plastic layer, or as per customers’ requirements.7. ...